mineral
Rhodochrosite with Quartz
Manganese Carbonate (MnCO3) with Silicon Dioxide (SiO2)
Hardness 3.5-4 (Rhodochrosite) / 7 (Quartz); Color: Pink to rose-red with white bands; Luster: Vitreous to pearly; Crystal structure: Trigonal; Cleavage: Perfect rhombohedral.
- Color
- Pink to rose-red with white bands
- Luster
- Vitreous to pearly
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Physical properties
Hardness 3.5-4 (Rhodochrosite) / 7 (Quartz); Color: Pink to rose-red with white bands; Luster: Vitreous to pearly; Crystal structure: Trigonal; Cleavage: Perfect rhombohedral.
Formation & geological history
Forms in hydrothermal veins along with other manganese minerals, often in low-temperature ore deposits or as a secondary mineral in sedimentary deposits.
Uses & applications
Used primarily as an ore of manganese, a gemstone for jewelry, and as a popular mineral specimen for collectors.
Geological facts
Also known as 'Rosa del Inca' or 'Inca Rose,' rhodochrosite is the national gemstone of Argentina. Its distinctive pink color comes from the presence of manganese.
Field identification & locations
Can be identified by its characteristic pink 'raspberry' color and white banding. It reacts slightly to warm hydrochloric acid. Found in Argentina, Colorado (USA), Peru, and South Africa.
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